软基上的风机塔架基础结构接触特性研究  

Study on Contact Characteristics of Wind Generator Tower Foundation Founded on Soft Soil

作　　者：许新勇[1] 罗全胜[2] 刘宪亮[2] 张迪[2] 

机构地区：[1]华北水利水电学院,河南郑州450011 [2]黄河水利职业技术学院,河南开封475003

出　　处：《水力发电》2011年第12期75-77,共3页Water Power

基　　金：国家自然科学基金项目(51009066);华北水利水电学院高层次人才基金项目(2010017)

摘　　要：针对砂土软基上的大型风力发电机组塔架基础结构,基于ANSYS平台建立了三维有限元数值模型,引入了基础钢环与混凝土及砂土地基之间的非线性接触,研究了软基对风机塔架基础特殊形式的受力影响,明确了塔架基础结构的受力特性和规律。对基础与地基的脱开、滑移现象进行了细致的分析。研究认为,对于大型风机基础分析考虑接触特性是必要的。该研究成果为风机基础的设计和优化提供了科学依据。A ANSYS-based three-dimension finite element model for wind generator foundation founded on soft sand soil is established for analyzing the structure of foundation, in which, the nonlinear contact of the steel ring to concrete and sand soil is introduced. The contact characteristics and mechanics performances of wind foundation are analyzed and the mechanism of disengagement and sliding between the soil and foundation is also studied by above model. The study shows that it is necessary to consider contact characteristics for large-scale wind generator. The results provide a scientific basis for the design and optimization of wind generator foundation.

关 键 词：风力发电 塔架基础 软土地基 接触特性 非线性有限元 

分 类 号：TM614[电气工程—电力系统及自动化] TU476.1[建筑科学—结构工程]